Benny Gantz told reporters that Israel has been in touch with US and Palestinian officials, and said all parts of the investigation would be made public.
The Israeli army initially suggested that Abu Akleh might have been killed by stray fire from Palestinian militants. The military chief, Lt. Gen. Aviv Kohavi, later stepped back from that assertion, saying it was unclear who had fired the deadly bullet.
But Gantz was more cautious Wednesday evening. ``We are trying to figure out exactly what happened....I don't have final conclusions.''
``I am very sorry for what happened,'' Gantz told reporters.
``Currently, we do not know what was the direct cause of Shireen's death. We are very decisive to have a full-scale investigation of this process, and we hope to get Palestinian cooperation on this issue. Without the report of the pathological findings and the forensic findings, it would be very hard for us to find out what happened on the ground.''
``We investigated all the troops that were part of the operation,`` he added. ``So far, we don't have any final conclusion.''
Abu Akleh's death could draw new scrutiny to Israel's military justice system, which is being examined as part of a war crimes probe conducted by the International Criminal Court. It also threatened to further strain often rocky relations between the army and the international media.